Add constraint to the database column maxAssignment

Signed-off-by: Melanie Retter <melanie.retter@bosch-si.com>

hawkbit-repository/hawkbit-repository-api/src/main/java/org/eclipse/hawkbit/repository/exception/ConstraintViolationException.java

@@ -0,0 +1,61 @@
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.eclipse.hawkbit.repository.exception;
+
+import org.eclipse.hawkbit.exception.AbstractServerRtException;
+import org.eclipse.hawkbit.exception.SpServerError;
+
+/**
+ * the {@link ConstraintViolationException} is thrown when an entity is tried to
+ * be saved and violates a constraints, like value > 0
+ */
+public class ConstraintViolationException extends AbstractServerRtException {
+
+    private static final long serialVersionUID = 1L;
+    private static final SpServerError THIS_ERROR = SpServerError.SP_REPO_CONSTRAINT_VIOLATION;
+
+    /**
+     * Default constructor.
+     */
+    public ConstraintViolationException() {
+        super(THIS_ERROR);
+    }
+
+    /**
+     * Parameterized constructor.
+     * 
+     * @param cause
+     *            of the exception
+     */
+    public ConstraintViolationException(final Throwable cause) {
+        super(THIS_ERROR, cause);
+    }
+
+    /**
+     * Parameterized constructor.
+     * 
+     * @param message
+     *            of the exception
+     * @param cause
+     *            of the exception
+     */
+    public ConstraintViolationException(final String message, final Throwable cause) {
+        super(message, THIS_ERROR, cause);
+    }
+
+    /**
+     * Parameterized constructor.
+     * 
+     * @param message
+     *            of the exception
+     */
+    public ConstraintViolationException(final String message) {
+        super(message, THIS_ERROR);
+    }
+}

hawkbit-repository/hawkbit-repository-api/src/main/java/org/eclipse/hawkbit/repository/exception/EntityAlreadyExistsException.java

@@ -8,15 +8,12 @@
  */
 package org.eclipse.hawkbit.repository.exception;
 
-import org.eclipse.hawkbit.exception.SpServerError;
 import org.eclipse.hawkbit.exception.AbstractServerRtException;
+import org.eclipse.hawkbit.exception.SpServerError;
 
 /**
- * the {@link EntityAlreadyExistsException} is thrown when a entity is tried to
+ * the {@link EntityAlreadyExistsException} is thrown when an entity is tried to
  * be saved which already exists or which violates unique key constraints.
- * 
- *
- *
  */
 public class EntityAlreadyExistsException extends AbstractServerRtException {
 

hawkbit-repository/hawkbit-repository-jpa/src/main/java/org/eclipse/hawkbit/repository/jpa/JpaSoftwareManagement.java

@@ -31,6 +31,7 @@ import org.eclipse.hawkbit.repository.SoftwareManagement;
 import org.eclipse.hawkbit.repository.SoftwareModuleFields;
 import org.eclipse.hawkbit.repository.SoftwareModuleMetadataFields;
 import org.eclipse.hawkbit.repository.SoftwareModuleTypeFields;
+import org.eclipse.hawkbit.repository.exception.ConstraintViolationException;
 import org.eclipse.hawkbit.repository.exception.EntityAlreadyExistsException;
 import org.eclipse.hawkbit.repository.exception.EntityNotFoundException;
 import org.eclipse.hawkbit.repository.jpa.model.JpaDistributionSet;
@@ -514,6 +515,10 @@ public class JpaSoftwareManagement implements SoftwareManagement {
             throw new EntityAlreadyExistsException("Given type contains an Id!");
         }
 
+        if (type.getMaxAssignments() <= 0) {
+            throw new ConstraintViolationException("The value for max assignments has to be greater than 0!");
+        }
+
         return softwareModuleTypeRepository.save((JpaSoftwareModuleType) type);
     }
 

hawkbit-repository/hawkbit-repository-jpa/src/main/java/org/eclipse/hawkbit/repository/jpa/model/JpaSoftwareModuleType.java

@@ -13,6 +13,7 @@ import javax.persistence.Entity;
 import javax.persistence.Index;
 import javax.persistence.Table;
 import javax.persistence.UniqueConstraint;
+import javax.validation.constraints.Min;
 
 import org.eclipse.hawkbit.repository.model.SoftwareModuleType;
 
@@ -36,6 +37,7 @@ public class JpaSoftwareModuleType extends AbstractJpaNamedEntity implements Sof
     private String key;
 
     @Column(name = "max_ds_assignments", nullable = false)
+    @Min(1)
     private int maxAssignments;
 
     @Column(name = "colour", nullable = true, length = 16)